Introduction: UTXQ512 high-performance CMOS asynchronous static RAMs o

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Introduction: UTXQ512 high-performance CMOS asynchronous static RAMs o

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Introduction: UTXQ512 high-performance CMOS asynchronous static RAMs organized 512K words bits. following questions frequently asked regarding these devices. Detailed information these devices found UTXQ512 Data Sheets. Questions Answers: Question 3.3V device compatible (interoperable) I/O? Answer compatible with (100ns) compatible with (25ns) Question What sizes 3.3V Answer UT7Q512 250mils 430mils (100ns) 32-lead ceramic flatpack UT8Q512 264mils 57mils (25ns) 36-lead ceramic flatpack UT9Q512 264mils 57mils (25ns) 36-lead ceramic flatpack Question Please provide size UT8Q512, 3.3V dice UT7Q512, 5.0V dice. Answer 264mils 572mils (see Figure Question cannot immediately provide maps, please least describe where bond pads die, i.e. they bottom (along short side only), there bond pads around four sides. Answer Bonding sides (see Figures Question QML-T Flow, what does this offer? Answer QCOTS Flow (see Screening FAQs) 100% Aracor wafer screening
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test structures wafer (100% wafers lot) wafer mapped assessment intra wafer variability Sample Cobalt screening samples (90% probability with confidence level) Structural analysis Contact/Via/Poly assembly (Group procurement vehicle Value added Wafer street cleaning, eliminates pealing metal shorts Wafer Assurance Radiation performance (SEE Total Dose) Reliability assessment (Oxide integrity) Rate target Question 100% visual inspection die? Answer Yes, Visual Aeroflex UTMC's (low magnification) Question visual inspection performed Class Space. Answer Yes, Visual Aeroflex UTMC's (low magnification) Question Have received 100% electrical probing? Answer room temperature, supplier Question what temperature been probed? Ambient Hot? Answer room, supplier, Question 10:) Wafer Acceptance been performed lot? Answer 10:) Yes, Aeroflex UTMC's flow
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Question 11:) Will come from same lot? Answer 11:) Dependent volume, wafer lots will same screening. Question 12:) What address access time? Answer 12:) address access time UT7Q512 100ns address access time UT8Q512 UT9Q512 25ns. Question 13:) What UT7Q512 flatpack test socket number manufacturer's name? Answer 13:) socket Wells-CTI #500-018-00, .050 c/c, 5-Lead Quad Flatpack Socket. This also socket used UT8Q512 UT9Q512. Question 14:) data sheets QCOTS SRAMs (i.e. UT7Q512, UT8Q512, UT9Q512) note solutions total dose radiation performance. differences behind these solutions listed below. Answer 14:) solutions refer intrinsic total dose performance SRAM additional radiation performance provided patented Aeroflex UTMC shielded package. Solution gained through intrinsic radiation hardness SRAM without necessity shielding. Solution radiation performance krads, orbit dependent, gained through shielding alloy Copper Tungsten. Question 15:) What does shielding offer designer does enhance radiation performance integrated circuit? Answer 15:) Shielded package technology improves life cycle spaceborne integrated circuits (ICs) shielding them from damaging effects space radiation. shielded package extends on-orbit lifetime factor three five times earth orbits (LEO) from eight times geosynchronous orbits (GEO). Aeroflex UTMC shielded package offers reduced weight over other shielding technologies awarded U.S. Patent September 2000. Question 16:)
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Whatis Aeroflex UTMC;s planfor higher density SRAM? Answer 16:) will stacking evaluating QCOTS SRAM.
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UTMC UT7Q512
~250mils
~430mils
Figure UT7Q512 Dimensions Approximate Coordinates
UTMC UT8Q512
~264mils
Figure UT8Q512 UT9Q512 Dimensions Approximate Coordinates
~572mils
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Introduction: UTXQ512 high-performance CMOS asynchronous static RAMs o

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